A number when added to 4 times to itself, gets equal to 10 times to its predecessor. Find the number.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 2
Let the number be x
According to question
x+4x = 10(x-1)
x+4x = 10x - 10
10 = 10x - 5x
10 = 5x
x = 2
Hence, the correct answer is 2.